[python] take care to this detail of @contextmanager: if an unhandled exception occurs in the block, it is reraised inside the generator at the point where the yield occurred
"""pre 3.6 bw compat"""# pylint: disable-msg=W0614,W0401fromwarningsimportwarnwarn('moved to cubicweb.uilib',DeprecationWarning,stacklevel=2)fromcubicweb.uilibimport*